Improvement in wash-boilers



C. H. STRAFFIN.

Wash-Boilers.

FMLN-7,195, Patented Feb. 3,1874.

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UNITED STATES PATENT OFFICE CHARLES H. STRAFFIN, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN WASH-BOILERS.

Specification forming part of Letters Patent No. 147.195, dated February 3, 1874; application filed May 17, 1873. I

To all whom it 'may concern:

Be it known that I, CHARLES H. STRAEFIN, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new an d Improved Wash-Boiler, of which the following is a specification:

The object ot' my invention is to simplify and cheapen the construction ot that part of a steam wash-boiler which causes the water to overflow and circulate. The nature consists in the improved construction, which maybe best understood by reference to the drawings and following description.

Figure 1 is a perspective view of the parts which cause the overflow of the water. Fig. 2 is avertical section of the sametaken through the line x y of Fig. 1. Fig. 3 is aview of the water-tube.

Let A B represent an elliptical band made of any suitable thin metal, and of such size and shape as to tit with considerable accuracy the interior of the boiler, to which it is to be applied. O is an elliptical-shaped piece of board having perforations D D D, as shown in Fig. 1. EE, Figs. 1 and 2, is arecess cut into the board C, said recess being provided with a scarf or kerf, e e. The tube H is formed, as shown, having perforations K K K near its top. The lower concave edge of the tube is made with a flange, L L, which ts into the kerf e e otl the board C. To unite the parts I press the lower end ofthe tube H into the recess E E, the flange L L tting into the kert' Then the board- O with thetube H is pressed into the band A B, to which it may be secured by nails or screws; or, if desirable, the band A B may have a corrugation formed in it to receive the lower side of the board, and thus hold it from going down. Resistance to upward pressure may be secured by indent- .ing the band just above the board.

To use my invention, the desired quantity of water is placed in the boiler, and the clothes to be cleansed placed in the boiler above the board O. Now, if the Water" is made to boil, steam is formed below the board, which, producing a pressure on the water, forces it up through the tube H and out of the perforations K K K onto the clothes, through which it will settle to the bottom of the boiler, and in its turn be again forced up through the tube H. y

I claim as my invention- The Water-tube H provided with lange L, in combination with the board O and band A B, arranged as described, and for the purpose set forth.

OHAS. H. STRAFFIN.

Vitnesses FRANK G. PARKER, XVILLIAM EDsoN. 

